2013 models: The HDMI 4 terminal of the KDL-X8500A/X850A series supports HDCP 2.2 protocol.NOTE：When viewing 4K contents via a Sony 4K Ultra HD media player on any 2013 models outside of the KDL-X8500A/X850A series, TV improvements by a Sony service center may be necessary. For details, refer to the 4K Ultra HD media player manual.